After hearing through the 3cd "Electrified" box set, i can say that its not a Must Have. But by all means..buy it if you are a fan and must have everything Boris or Yello have released.But you wont find any tracks here that is essential. If you got rare releases like The Key to Perfection and Progress And Perfection and the Boris releases AvantGarden 1-3 then nothing here will gets your rocks of.ill give it a 4 out of 6 stars. A nice add on to your collection,but not amust have to discover new great tracks.